Apparatus for impregnating or treating textile fabrics and other materials



y y 1.5;n.. TAYLOR. APVPARATUS FOR IMPRGNATING 0R lTRIEATIN'G TEXTILE FABRICS AND OTHER MATERIALS.

.APPLICATION FILED NOV. I4, |917.

4., n m m 2 y .M n f w mf i F r d @I D m a. M l/w a f I @w I 0 P r: um J mm am residing at London, England,

' with v JOHN DARNLEY TAYLOR, OF LQNDON, ENGLAND. y

APPARATUS IORv IMPREGNATING 0R TREATING TEXTILE FABRICS AND OTHER MATERIALS.

Specification of Letters Patent. V

Patented Feb. 24, 1920.

Application filed November 14, 1917. Serial No. 201,991.

To all whom t may concern.'

Be it known that I, JOHN DARNLEY TAY- Lon, a subject of the King of Great Britain, have invented new and useful Improvements in and Relating to Apparatus for Impregnating or Treating Textile Ilabrics and other Materials, of which th fication.

This invention for impregnating or'treating textile fabrics and other materials with solutionsor compositions containing volatile constituents and it is the object of the invention to provide an improved apparatus lfor this purpose adapted not only to effect a. thorough impregnation of the material under treatment the desired solution or composition but also to eect the recovery stituents of the solution thereby effecting considerable economy.

With this ob]ect 1n view and such others as may hereinafter appear or are and a drying chamber means for maintaining a vacuum in said chambers, means cooperating with said chambers for drying the material under treatment and impregnating it with a solution containing volatile constituents, means for drying said material after impregnation and means for recovering the volatile constituents of said solution. In order that my invention may be readily understood and carriedl into effect I will proceed to describe the same fully for which purpose 'reference is-to be had to the accomanying drawing whichzf Illustrates wdiagrammatically a longitudinal section of4 an apparatus constructed in -accordance with dthis invention parts being shown in elevation. y

In .that embodiment trated the numeral 1 indicates an impregnating chamber and 2 a drying chamber communicating therewith.v Rotatably mounted in the chamber 1 Yin ball or other antifriction bearings are spindles 3 and 4 serving vfor the reception of the fabric or the like to be treated while a tank 5 is also' provided within said'chamber 1 forthe solution or F composition with which said fabric is 4to b e impregnated. The tank 5 1s in communiof the pipe connection e followmg is a speci' has reference to apparatus p' of the volatile conknown manner and incidentall thereto the invention lmay be said to be embodied ina construction for the purpose set Vforth comprising an impregnatingchamber of the invention illus- I `a leader belt 32 cation with a storage reservoir 6 by means 7 in which suitable valves 8V and 9 are arranged and within the tank near the bottom thereof a suitable guide roll 10 is mounted in antifriction bearings while scraper blades 11 are also arranged within said tank to remove the superfluous solution from the fabric as it passes between them as will be 'presently explained. A guide roll 12 and guiding and squeezing rolls 13, 14 and 15 are rotatably mounted in antifriction bearings within the chamber 1 said rolls serving to guide and squeeze the impregnated fabric on its passage to and from the drying chamber 2` the construction of which I will now proceed'to describe. It comprises a rectangular box-like structure having a plurality of preferably steam heated chests or drying which steam may be circulated in any well provided with suitable guide rolls 17 mounted to rotate in antifriction bearings. Appropriate doors 18 and inspection windows 19 are provided in the side walls of the chamber 2 and a door 20 is arranged at the end for cleaning or other urposes. Near the end of the chamber 2 an outlet 21 is provided for the volatile constituents 0f the impregnating solution said outlet being of elongated formation extending approximately from side to side of the drying chamber 2 and connected to a condenser l22 preferably of the multitubular type which shelves 16 through ceiver 23 is connected to a vacuum pump 28 y actuated by an appropriate engine 29.

The operation of the apparatus above descrilbed is as follows: Steam having been admittedto the steamheated chests or plates 16 to heat up the chamber 2 a roll 3() of canvas, paper or other desired material is mounted uponv the spindle 3 in the chamber l and the free end of said material clamped or otherwise suitably securedito the end of already in position within the apparatus. The door 31 of the chamber 1 is closed, the vacuum pump 28 set in operation andthe spindles 3 and 4 driven from al suitable source of powerwhich maybe the engine 29-by gearing which however is not shown as it may be of any appropriate construction. By the time the end of the leader belt 32 to which the material is joined approaches the rolls 13-15-which can be ascertained from a suitable inspection window 32 in the chamber l-the pump 28 will have exhausted the atmospheric contents of the chambers 1 and 2 and that portion of the fabric under treatment which has assed between the steam heated chests 16 will have been thoroughly dried and theair in the interstices thereof extracted. v

The valves 8 and 9 in thepipe connection 7 are then opened and the impregnating solution in the storage vessel 6 will flow into the tank 5 under the influence of the vacuum I obtaining within the chambers 1 and 2. As

the fabric passes under the roller 10 it becomes impregnated with the solution which rowing tol the vacuum sinks into-the fabric and is pressed into all the minute interstices or pores thereof as it winds onto the spmdle v 4. When the whole of the material is wound upon the spindle 4 the direction of rotation of spindles 3 and 4 is reversed and the material again passes through the Atank 5 and *the superfluous solution removed by the scraper bla-des 11. It then passes between the rolls 15, 14 and 13 and between the heated chests or plates 16 and.l the volatile constituents of the solution with which it is impregnated are thus driven off and drawn through the elongated aperture 21 into the condenser 22 from which said constituents are delivered in liquid form to the receiver 23 from the lower compartment 25 of which they may lbe abstracted as required without parts all rolls and spindles destroying the vacuum in the chambers 1 and 2 by closing the Valve 27 and opening the vacuum break cock 27 in the compartment 25. rlhe material when completely wound upon the spindle 3 is in a dry condition and may be then removed from the apparatus. y,

It will be seen that under my invention I have provided an apparatus for rapidly and efliciently impregnating textile or other material with solutions containing volatile constituents and for recovering said volatile constituents for further use in which the risk of danger arising from the formation of an explosive mixture of 'air and inflammable vapors is reduced to a minimum for it is to be noted that the whole of the o-peration is conducted `in the absence of atmospheric air while as a further safeguard against accident arising from friction of the moving are mounted in anti-friction bearings. y

What I claim and desire to secure by Letters Patent is 1. In impregn-ating textile fabrics and other materials with solutions containing volatile constituents, conducting the material through a heated vacuum chamber adapted to exhaust moisture and air therefrom, then passing the material through an impregnating solution and winding the same upon a receiving roll disposed in said impregnating chamber and above the said solution and after impregnationconducting the material back through the impregnating solution and the heated vacuum chamber on to the delivery roll so as to dry the impregnated material and extract the volatile constituents ofthe impregnating solution.

2f. In impregnating textile fabrics and other materials with solutions containing Volatile constituents, conducting the material through a heated vacuum chamber adapted to exhaust moisture and air therefrom, then passing the material through the impregnating solution in the`vacu11m chamber and winding same upon a 4receiving drum disposed in said impregnating chamber above the said solution and .after impregnation conducting the material back through the impregnating solution and the heated vacued in said impregnating chamber,.a tank situated in the impregnating chamber for the impregnating solution, means for conducting the fabric through the tank, means for extracting air and moisture and the volatile constituents and condensing the last and maintaining a vacuum in the said chambers, and means whereby the portions of the condensate can be withdrawn from the system during the working thereof without lowering the vacuum.

4. In vacuum apparatus for impregnating or treating textile fabrics and other materials with solutions or compositions containing volatile constituents, the combination with the impregnating' chamber, of a drying c tion therewit delivery and winding-rolls mounted in said impregnating chamber, a

tank for impregnating solution in said impregnating chamber, means for conducting the fabric through the tank, means for heating the drying chamber, means for extracting air from said drying and impregnating chambers and from the material undergoing treatment, means for reversing the movement of the conducting means, means for examber vin open communica-` tracting the volatile constituents and condensing the last and maintaining a vacuum 1n the said chambers, and means whereby the portions of the condensate can be withdrawn from the system during the working thereof without loweringvthe vacuum.

v5. In vacuum apparatus for impregnating or treating textile terials with solutions or compositions containing volatilel constituents, the combination with an impregnating chamber, a tank in said chamber for the impregnating solution and rolls in said chamberfor guiding the fabric through the impregnating solution in said tank, of a storage vessel in communication .with said tank, a drying chamber in communication with said impregnating chamber, means for maintaining a vacuum in the chambers, means forl regulating the feeding of the aforesaid tank with impregnating solution, means for extracting the volatile constituents and condensing the last and maintaining a vacuum in the said chambers, and means whereby the portions of the condensate can be withdrawn from the system during the working thereof without lowering the vacuum.

6. In vacuum apparatus for impregnating or treating textile fabrics and other materials with solutions or compositions containing volatile constituents, the combination with an impregnating chamber, of a tank for holding impregnating solution in said chamber, a drying chamber in open communication with and forming an extension of saidimpregnating chamber, means in the impregnating chamber for receiving and guiding the material through the impregnating solution, means for conducting the fabric through the drying chamber, means for ref fabrics and other ma` v and means whereby during the working thereof without lowering the vacuum.

In vacuum apparatus for impregnating or treating textile fabrics and other materials with solutionsr or compositions containing v'olatle constituents, the combination with an impregnating chamber, of la. drying chamber constituted by an extension of said impregnatin chamber in open commnication therewit antifriction rolls in the impregnating chamber for receiving and guiding the material through the impregnating solution, a leader belt for conducting the leading end of the material, steam containers in the drying chamber, antifriction supporting and guiding rolls in 'said drying chamber and situated relatively to said steam con-y tainers, means for rotatively operating the "rolls in the impregnating chamber in either direction so as to cause the material to travel forward and lbackward in the said imprevnating and drying chambers, means/for withdrawing the volatile constituents and condensing the last and maintaining a vacuum in the said chambers', and means whereby the portions of the condensate can be withdrawn from the system during the working thereof without lowering the vacuum. i

JOHN DARNLEY TAYLOR. 

